MK Morse HHBF02 Master McCoy Hack Saw Frame with Blade Locking Screw Design allows for storage of extra blades and secures blade for "jab" sawing Multiple Pin Locations for mounting blade at 90 or 45 for standard or flush-cut applications Tensioning Handle provides extra torque for straighter cuts and longer blade life Alloy Steel Support Beam makes frame stronger and allows over 30,000 PSI tensioning Ergonomic grip protects fingers and grips comfortably